The Columbia Otolaryngology Department is interested in understanding the intersection of vaping, smell, and taste and their impact on individuals' preferences for certain flavors. Participation will involve answering a series of questionnaires in addition to completing a formal evaluation of your smell and taste with standardized measurements. You can…
The use of electronic cigarettes, also known as e-cigs or vaping, has increased among former smokers and young adults who have never smoked. Relatively little is known, however, about their health effects (whether they are adverse, have no effect, or are beneficial). The purpose of this research study is to evaluate (1) the association of e-cig use with…
This is a four-session study in which we will be recruiting existing cigarette smokers to explore the competitive dynamics between memory encoding and memory retrieval. To participate, you will first go through a phone screening to determine eligibility and learn about the study. Then you will be asked to visit our facility at the Morningside Campus of…
This study will test a computer-based behavioral intervention to decrease cocaine use. Those who fail to achieve cocaine abstinence after the first 4 weeks while receiving the behavioral treatment will continue the behavioral treatment and be randomly assigned to one of two groups (one group will receive Adderall-XR (MAS-ER) and the other group will receive…
The study is a two group outpatient study, one group receiving medications (Adderall-XR and topiramate) and one group receiving a placebo (inactive sugar pill). The study is looking at the safety and effectiveness of Adderall-XR (MAS-ER) and topiramate in the treatment of cocaine dependence. It is a 14-week trial that requires patients to attend visits 3…
The purpose of this study is to find out how doctors describe hepatic encephalopathy episodes in patients medical records in the course of their regular practice. The aim of the study is simply to collect information from their medical records about how their episodes of overt hepatic encephalopathy are described. There is nothing that will be required of…
The purpose of this study is to compare the time to onset of an episode of overt HE, in subjects with previously demonstrated overt HE after treatment with rifaximin 550 mg BID and lactulose, or rifaximin 550 mg BID. Subjects will be screened to confirm eligibility into the study. Once confirmed, subjects will begin the treatment phase and will be randomly…